21177918720

素因数分解:

$2^8\times 3^3\times 5^1\times 7^1\times {\mathrm{87541}}^1$

素因数の和:87578

約数の個数: 288

約数和(自身を含む): 85889207040

約数和(自身を除く): 64711288320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 256, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 540, 560, 576, 630, 640, 672, 720, 756, 768, 840, 864, 896, 945, 960, 1008, 1080, 1120, 1152, 1260, 1280, 1344, 1440, 1512, 1680, 1728, 1792, 1890, 1920, 2016, 2160, 2240, 2304, 2520, 2688, 2880, 3024, 3360, 3456, 3780, 3840, 4032, 4320, 4480, 5040, 5376, 5760, 6048, 6720, 6912, 7560, 8064, 8640, 8960, 10080, 11520, 12096, 13440, 15120, 16128, 17280, 20160, 24192, 26880, 30240, 34560, 40320, 48384, 60480, 80640, 87541, 120960, 175082, 241920, 262623, 350164, 437705, 525246, 612787, 700328, 787869, 875410, 1050492, 1225574, 1313115, 1400656, 1575738, 1750820, 1838361, 2100984, 2363607, 2451148, 2626230, 2801312, 3063935, 3151476, 3501640, 3676722, 3939345, 4201968, 4727214, 4902296, 5252460, 5515083, 5602624, 6127870, 6302952, 7003280, 7353444, 7878690, 8403936, 9191805, 9454428, 9804592, 10504920, 11030166, 11205248, 11818035, 12255740, 12605904, 14006560, 14706888, 15757380, 16545249, 16807872, 18383610, 18908856, 19609184, 21009840, 22060332, 22410496, 23636070, 24511480, 25211808, 27575415, 28013120, 29413776, 31514760, 33090498, 33615744, 36767220, 37817712, 39218368, 42019680, 44120664, 47272140, 49022960, 50423616, 55150830, 56026240, 58827552, 63029520, 66180996, 67231488, 73534440, 75635424, 78436736, 82726245, 84039360, 88241328, 94544280, 98045920, 100847232, 110301660, 112052480, 117655104, 126059040, 132361992, 147068880, 151270848, 156873472, 165452490, 168078720, 176482656, 189088560, 196091840, 201694464, 220603320, 235310208, 252118080, 264723984, 294137760, 302541696, 330904980, 336157440, 352965312, 378177120, 392183680, 441206640, 470620416, 504236160, 529447968, 588275520, 605083392, 661809960, 705930624, 756354240, 784367360, 882413280, 1008472320, 1058895936, 1176551040, 1323619920, 1411861248, 1512708480, 1764826560, 2117791872, 2353102080, 2647239840, 3025416960, 3529653120, 4235583744, 5294479680, 7059306240, 10588959360, 21177918720]

約数ペア:

[(1, 21177918720), (2, 10588959360), (3, 7059306240), (4, 5294479680), (5, 4235583744), (6, 3529653120), (7, 3025416960), (8, 2647239840), (9, 2353102080), (10, 2117791872), (12, 1764826560), (14, 1512708480), (15, 1411861248), (16, 1323619920), (18, 1176551040), (20, 1058895936), (21, 1008472320), (24, 882413280), (27, 784367360), (28, 756354240), (30, 705930624), (32, 661809960), (35, 605083392), (36, 588275520), (40, 529447968), (42, 504236160), (45, 470620416), (48, 441206640), (54, 392183680), (56, 378177120), (60, 352965312), (63, 336157440), (64, 330904980), (70, 302541696), (72, 294137760), (80, 264723984), (84, 252118080), (90, 235310208), (96, 220603320), (105, 201694464), (108, 196091840), (112, 189088560), (120, 176482656), (126, 168078720), (128, 165452490), (135, 156873472), (140, 151270848), (144, 147068880), (160, 132361992), (168, 126059040), (180, 117655104), (189, 112052480), (192, 110301660), (210, 100847232), (216, 98045920), (224, 94544280), (240, 88241328), (252, 84039360), (256, 82726245), (270, 78436736), (280, 75635424), (288, 73534440), (315, 67231488), (320, 66180996), (336, 63029520), (360, 58827552), (378, 56026240), (384, 55150830), (420, 50423616), (432, 49022960), (448, 47272140), (480, 44120664), (504, 42019680), (540, 39218368), (560, 37817712), (576, 36767220), (630, 33615744), (640, 33090498), (672, 31514760), (720, 29413776), (756, 28013120), (768, 27575415), (840, 25211808), (864, 24511480), (896, 23636070), (945, 22410496), (960, 22060332), (1008, 21009840), (1080, 19609184), (1120, 18908856), (1152, 18383610), (1260, 16807872), (1280, 16545249), (1344, 15757380), (1440, 14706888), (1512, 14006560), (1680, 12605904), (1728, 12255740), (1792, 11818035), (1890, 11205248), (1920, 11030166), (2016, 10504920), (2160, 9804592), (2240, 9454428), (2304, 9191805), (2520, 8403936), (2688, 7878690), (2880, 7353444), (3024, 7003280), (3360, 6302952), (3456, 6127870), (3780, 5602624), (3840, 5515083), (4032, 5252460), (4320, 4902296), (4480, 4727214), (5040, 4201968), (5376, 3939345), (5760, 3676722), (6048, 3501640), (6720, 3151476), (6912, 3063935), (7560, 2801312), (8064, 2626230), (8640, 2451148), (8960, 2363607), (10080, 2100984), (11520, 1838361), (12096, 1750820), (13440, 1575738), (15120, 1400656), (16128, 1313115), (17280, 1225574), (20160, 1050492), (24192, 875410), (26880, 787869), (30240, 700328), (34560, 612787), (40320, 525246), (48384, 437705), (60480, 350164), (80640, 262623), (87541, 241920), (120960, 175082)]